Download App

STD 11 - 3. Classification of elements and periodicity in properties — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 3. Classification of elements and periodicity in properties4 Marks
MCQ
Which of the following order is incorrect ?
  • A
    Electronegativity of central atom : $CF_4 > CH_4 > SiH_4$
  • ✓
    Hydration energy : $Al^{3+} > Be^{2+} > Mg^{2+} > Na^+$
  • C
    Electrical conductance : $F^-_{(aq.)} > Cl^-_{(aq.)} > S^{2-}_{(aq.)}$
  • D
    Magnetic moment : $Ni^{4+} >  V^{3+} > Sr^{2+}$
✓

Answer

Correct option: B.
Hydration energy : $Al^{3+} > Be^{2+} > Mg^{2+} > Na^+$
b
$Cl _{2} O _{7} \quad$ Acidic

$Na _{2} O \quad$ Basic

$Al _{2} O _{3} \quad$ Amphoteric

$N _{2} O \quad$ Neutral

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Match List $I$ with List $II$ with correct code

List $I$ List $II$
$1E_1\,\,1E_2\,\,1E_3$  
$(A)$ $1510$ $-$ $-$ $(1)$ $H$
$(B)$ $495$ $6500$ $10200$ $(2)$ $Li$
$(C)$ $840$ $1630$ $13100$ $(3)$ $Be$
$(D)$ $600$ $2050$ $3100$ $(4)$ $B$

( $1E$ in $KJ\,mol^{-1}$ )

→
In equimolar solution of glucose, $NaCl$ and $BaC{l_2}$, the order of osmotic pressure is as follow
→
The ratio of $pH$ of $0.1\, M\, H_2SO_4$ and that of $0.1\, N\, H_2SO_4$ is
→
Scheme $1$ and $2$ describe the conversion of $P$ to $Q$ and $R$ to $S$, respectively. Scheme $3$ describes the synthesis of $T$ from $Q$ and $S$. The total number of $Br$ atoms in a molecule of $T$ is. . . . . . . .

Scheme $1$ : (image)

Scheme $2$ :(image)

Scheme $3$ :(image)

→
$1.0\, g$ of an oxide of $A$ contained $0.5\, g$ of $A$. $4.0\,g$ of another oxide of $A$ contained $1.6 \,g$ of $ A$. The data indicate the law of
→
Phosphorus is manufactured by heating in a electric furnace a mixture of
→
The electron in the $n ^{\text {th }}$ orbit of $Li ^{2+}$ is excited to $(n+1)$ orbit using the radiation of energy $1.47 \times 10^{-17}\,J$ (as shown in the diagram). The value of $n$ is $....$.Given $R_H=2.18 \times 10^{-18}\,J$
→
When the value of the principal quantum number $n$ is $3$, the permitted values of the azimuthal quantum numbers $l$ and the magnetic quantum numbers $m$ , are $l$$m$

            $l$                       $m$

→
Which statement is incorrect among the following?
→
Mendeleef's periodic law is based on
→